Year	current US$
1977	328600000
1978	347900000
1979	358300000
1980	463700000
1981	466300000
1982	329200000
1983	243600000
1984	232400000
1985	167000000
1986	153100000
1987	245200000
1988	299000000
1989	355900000
1990	363200000
1991	328000000
1992	500300000
1993	548100000
1994	601700000
1995	672500000
1996	638200000
1997	626600000
1998	759100000
1999	759700000
2000	784800000
2001	889333694.1122819
2002	1018238544.4813399
2003	1085463439.88677
2004	1324700000
2005	1428800000
2006	1756400000
2007	2017000000
2008	2390163380
2009	2137895070
2010	2401096060
2011	2616426700
2012	2810782970
2013	2897617790
2014	3050054730
2015	3090807450
2016	3125260990
2017	3243073590
2018	3469710010
2019	3550502730
2020	2763748790
2021	3958106300
2022	5257358310
2023	5542723030